A comprehensive resource for safe and responsible laser use
An April 12 2018 story says that although “[s]evere torture and unscientific handling” can cause problems, that laser pointers also may have been used recently by “a mysterious group with vested interests.”
According to the story, “There were complaints that light beams were shined continuously from a distance into the eyes of elephants paraded at the Sree Padmanabhaswamy Temple in Thiruvananthapuram and some other local temples in Thiruvalla and Pathanamthitta. It was alleged that the jumbos turned restive and violent after being blinded with the high-powered laser pointer.”
The story includes a 47-second video clip of an elephant refusing to get onto a truck, while a dot moves around on and near the elephant.
COMMENTARY FRO LASERPOINTERSAFETY.COM
An analysis indicates that the moving dot is not from a laser, but is from internal reflection in the camera lens of a bright light in the scene.
The screenshot below, from one second into the video, shows the dot circled in green, and a bright light circled in red.
As the video is played, the dot moves around. Its movements are correlated with the bright light. For example, when the elephant’s body blocks the light, the dot disappears. Because it is a reflection, it moves opposite to the light, and its movement also changes based on the tilt of the camera lens.
In addition, the dot appears yellow or white. This correlates with the light color. Yellow is very uncommon for laser pointers, while there are no “white” laser pointer beams. A green or red dot would indicate an actual laser.
While there may be other incidents of laser pointer misuse in Kerala, the moving dot in this particular video does not, in the view of LaserPointerSafety.com, show a laser dot or any actual (real-world) light on the elephant.
From Manorama Online
After the “read more” link are more stories, plus speculation that the cause might be ultraviolet light, or chemical irritation from fog or smoke.
NYE laser show leaves 200 students in Andhra with eye irritation
The children's eyes began watering and had turned red when they got up the next morning.
Around 40 students of a private school in Andhra Pradesh's Parvathipuram village in Vizianagaram district had to be given medical treatment, after their eyes began to swell on Monday morning [January 1 2018].
The 40 students, along with 200 others, began complaining of irritation and pain in their eyes, after they were reportedly exposed to lights and lasers during a show, as part of the school's New Year's Eve celebrations.
The children's eyes began watering, and had turned red when they got up the next morning.
As the children began complaining, worried parents staged a protest and demanded answers from the school.
Following this, doctors rushed to the school and administered first-aid, before assuring those who had gathered, that the kids would not lose eyesight.
“We prescribed eye drops and ointment for the affected children,” a doctor told the Times of India.
Meanwhile, Vizianagaram district Collector Vivek Yadav was informed of the incident, and directed the Revenue Divisional Officer (RDO) of Parvathipuram, P Sudarsan Dora, to visit the school along with Mandal Educational Officer P Krishna Murthy.
Circle Inspector G Rambabu also visited the school along with the officials, and spoke to the children, to collect more details regarding the case. Further details are awaited.
Click the “read more” link to see additional updated stories, plus speculation on the possible cause. Click to read more...